Patent application number | Description | Published |
20090209862 | METHOD AND APPARATUS FOR MEDICAL ULTRASOUND DIAGNOSTICS - A method and apparatus for medical ultrasound diagnostics use time multiplexing of ultrasonic transducers of a multi-transducer array ( | 08-20-2009 |
20090312637 | ULTRASOUND MONITORING AND FEEDBACK FOR MAGNETIC HYPERTHERMIA - A method and system of magnetic hyperthermia control using ultrasound thermometry, the method comprising: acquiring a reference set of ultrasound data corresponding to a tissue of interest ( | 12-17-2009 |
20100069754 | APPARATUS FOR 3D ULTRASOUND IMAGING AND THERAPY - An apparatus for application of three-dimensional ultrasound imaging and therapy comprising a two-dimensional ultrasound imaging array of transducer elements having an image signal transmitter and receiver that forms, steers and selectively focuses ultrasound beams to a three-dimensional moving or stationary spatial volume; one or more two-dimensional ultrasound therapy arrays of transducer elements, each array having a therapy signal transmitter that forms, steers and selectively focuses and delivers ultrasound therapy to the volume; wherein the location of the array of imaging and therapy transducer elements are known relative to one another; and a controller that controls the image transmitter and receiver to provide three-dimensional images of the volume and simultaneously independently controls each of the one or more therapy transmitters to deliver therapy to the volume. Also disclosed is a method of delivering ultrasound therapy to a biological tissue in a three-dimensional moving or stationary spatial volume utilizing the apparatus. | 03-18-2010 |
20110125080 | ULTRASOUND MEDIATED DRUG DELIVERY - Described is a method for the delivery of a therapeutic agent to a mammal, particularly a human person, comprising (i) the administration of ultrasound particles that undergo a physical change when subjected to ultrasound; (ii) the administration of the therapeutic agent in an ultrasound dosage form allowing release of the therapeutic agent to be affected by the application of ultrasound, (iii) the application of ultrasound so as to affect a physical change in at least some of the ultrasound particles, and (iv) the application of ultrasound so as to stimulate release of the therapeutic agent. According to the invention the ultrasound particles are subjected to detection of their acoustic responses via echoes and/or emissions. The information thus obtained is processed and the processed information is used to adapt or adjust the ultrasound-mediated delivery of the therapeutic agent. This can be carried out using a single set of particles (that serve both as ultrasound imaging tracers and as drug delivery vehicles) or by applying separate sets of particles. | 05-26-2011 |
20110130663 | SYMMETRIC AND PREFERIENTIALLY STEERED RANDOM ARRAYS FOR ULTRASOUND THERAPY - A phased ultrasound array for an ultrasound generating device. In one embodiment, the array includes a plurality of ultrasound elements arranged symmetrically about a point or dividing line in the array with respect to element size, shape and/or element location. In another embodiment, a majority of larger elements of the ultrasound array are arranged on a first portion of the array and a majority of smaller ultrasound elements are arranged on a second portion of the array. The first portion is closer to a preferred direction of steering than the second portion. Another method includes selecting randomly sized ultrasound elements and arranging the ultrasound elements symmetrically on the array. An additional method includes selecting randomly sized ultrasound elements and arranging the ultrasound elements wherein the larger ultrasound elements are arranged on a first portion of the array and smaller ultrasound elements are arranged on a second portion of the array. | 06-02-2011 |
20110178391 | SYSTEM AND METHOD FOR ULTRASOUND THERAPY TREATMENT - A system and method for treating tissue, such as treating prostate diseases, using an ultrasound therapy system. An ultrasonic applicator ( | 07-21-2011 |
20110208055 | METHOD AND SYSTEM FOR ULTRASOUND THERAPY - An ultrasound ablation system can include an imaging device ( | 08-25-2011 |
20120035464 | CONTROL APPARATUS FOR CONTROLLING A THERAPEUTIC APPARATUS - A control apparatus ( | 02-09-2012 |
20120070058 | MR IMAGING GUIDED THERAPY - The invention relates to a therapeutic system comprising: a MR imaging unit arranged to acquire MR signals from a body ( | 03-22-2012 |
Patent application number | Description | Published |
20090018449 | Ultrasonic Method and Apparatus for Measuring or Detecting Flow Behavior of a Non-Sinusoidal Periodicity - A method and apparatus for automated detection of a general, non-sinusoidal type of periodicity in ultrasound Doppler signals from pulsatile blood flow is described. The method computes a pulsation index, which is a sum of the normalized powers of the fundamental and several harmonic components in the frequency spectrum of the banded Doppler signal. A weighting function may be applied to the power from each harmonic component in order to suppress contributions due to spurious peaks, as in the case when pulsatile flow is absent. | 01-15-2009 |
20100016765 | INTEGRATED SPECT IMAGING AND ULTRASOUND THERAPY SYSTEM - A method and apparatus for the integration of an ultrasound transducer with a SPECT imaging system is disclosed. The ultrasound transducer allows the delivery of particle-born drug therapies or thermally active therapies at the same site detected with SPECT imaging. The system includes a SPECT imaging subsystem; an ultrasound transducer for producing a signal representative of applied ultrasound and signally coupled to the SPECT imaging subsystem; and co-registering means for co-registering the signal representative of applied ultrasound in a coordinate system of SPECT imaging subsystem. The SPECT subsystem may be replaced with a SPECT/CT combined system to provide morphology that allows for treatment planning. In another embodiment, the ultrasound transducer can be used intermittently with the sequential gathering of SPECT images for tracking time-varying properties of the binding of specific SPECT contrast agents to biomarkers of disease. In this way, the ultrasound and SPECT imaging devices form a novel combination to improve patient care through improved spatial registration, therapy planning, and workflow. | 01-21-2010 |
20100076315 | METHOD AND APPARATUS FOR HANDS-FREE ULTRASOUND - A skin-mounted device ( | 03-25-2010 |
20100261985 | METHOD AND APPARATUS FOR DETERMINING HYDRATION LEVELS FROM SKIN TURGOR - A method and apparatus for determining patient hydration levels is disclosed. The method includes measuring a skin turgor. Suction measurements are performed, wherein the distance between an ultrasound transducer and the skin surface is measured over time. | 10-14-2010 |
20100268072 | METHOD AND APPARATUS FOR POSITIONAL TRACKING OF THERAPEUTIC ULTRASOUND TRANSDUCER - A therapeutic ultrasound tracking system ( | 10-21-2010 |
20110301508 | TRANSURETHRAL ULTRASOUND PROBE FOR TREATMENT OF PROSTATE | 12-08-2011 |
20130261411 | Method and Apparatus for Determining Hydration Levels From Skin Turgor - A method and apparatus for determining patient hydration levels is disclosed. The method includes measuring a skin turgor. | 10-03-2013 |
Patent application number | Description | Published |
20130197362 | DOPPLER ULTRASOUND BASED FETAL MONITORING - A fetal movement monitoring method that limits the ultrasound radiation to safe levels and conforms to the ALARA principle is disclosed. The disclosed method of monitoring fetal movements by Doppler ultrasound comprises accumulating the time for which ultrasound is radiated into a subject, comparing the accumulated time with a first reference total time, counting the number of fetal movements in the subject, comparing the number of movements with a reference number, deciding at least one of a further action of the device and an action to be recommended to the subject and conveying at least one of a further action of the device, an information to the subject about the counted fetal movements and an action recommended to the subject. A Doppler ultrasound device for monitoring fetal movements in a subject is also disclosed. | 08-01-2013 |
20140155743 | IMAGING USING SETS OF CARBON NANOTUBES - An imaging method uses a plurality of sets of carbon nanotubes. Within a set the carbon nanotubes carry markers for a respective receptor that is specific for the set and the carbon nanotubes have a geometry, characterized for example by a chiral number that gives rise to an electromagnetic absorption peak at a wavelength specific to the set. An image is formed by transmitting electromagnetic radiation to a body, substantially at the wavelengths of the absorption peaks of the sets, e.g. time multiplexed with each other, and detecting for example an ultrasound response to absorption of the transmitted electromagnetic radiation. Different images of the electromagnetic absorption as a function of position in the body are formed for different wavelengths. | 06-05-2014 |
20140243736 | ULTRASOUND MEDIATED DELIVERY WITH CRITIAL-ORGAN PROTECTION - A device for delivery of a substance ( | 08-28-2014 |
20140243737 | ASSAYS FOR ULTRASOUND MEDIATED DELIVERY - Ultrasound mediated delivery (USMD), real-time quantitative feedback derived (S | 08-28-2014 |
20140249469 | AUTOMATED ULTRASOUND MEDIATED DELIVERY - Bubble presence within a region is monitored to determine if a predetermined condition is met such as whether the presence is of sufficient magnitude, the bubbles being subject to energizing ( | 09-04-2014 |
Patent application number | Description | Published |
20080304300 | Power conversion system with galvanically isolated high frequency link - A power conversion system has a three-phase AC input, where each AC input phase is linked to a string of cascaded single-phase AC-DC converters placed in series with a three-phase AC-DC converter. Each single-phase AC-DC converter in one embodiment includes a silicon carbide (SiC) pulse width modulated MOSFET H-bridge that placed in series with the three-phase AC-DC converter that includes a silicon (Si) SCR bridge. The single-phase AC-DC converters and the three-phase AC-DC converter together in one embodiment include a mixed silicon-carbide (SiC) and silicon (Si) device topology. | 12-11-2008 |
20100014325 | AC-AC CONVERTER WITH HIGH FREQUENCY LINK - An AC-AC Converter for an AC source which in one embodiment has a first rectifier section rectifying the AC source into a first pulsed DC link voltage signal and a high frequency modulating section coupled to the first pulsed DC link voltage signal and producing a high frequency AC voltage signal. A high frequency transformer is coupled to the high frequency AC voltage signal producing a transformed high frequency AC signal. There is a second rectifier section coupled to the transformed high frequency AC signal and producing a second pulsed DC voltage signal and an unfolder section coupled to the second pulsed DC voltage signal and producing an output AC signal. | 01-21-2010 |
20110221195 | SYSTEM AND METHOD FOR POWER CONVERSION - A multilevel inverter is provided. The multilevel inverter includes a plurality of bridges, each bridge configured to receive a respective portion of an input DC power and convert the respective portion to a respective converted AC power. The multilevel inverter also includes at least one bridge controller for operating at least one of the plurality of bridges in a square waveform mode. The multilevel inverter further includes a plurality of transformers, each transformer coupled to a respective bridge and configured to increase a voltage level of the respective portion of converted AC power. The plurality of transformers further includes secondary windings coupled in series with the other secondary windings to combine the respective increased voltage level portions of the converted AC power. The multilevel inverter also includes a grid converter configured to provide output power for a power grid. | 09-15-2011 |
20120092898 | ALTERNATING CURRENT TO DIRECT CURRENT POWER CONVERSION - An alternating current to direct current (AC to DC) power conversion system is provided. The system includes a rectifier configured to convert an input AC voltage to an initial pulsating DC voltage. The system also includes an inverter configured to convert the initial pulsating DC voltage to a converted AC voltage. The system further includes a plurality of transformers, each transformer including a primary winding paired to a secondary winding, wherein each of the primary windings is coupled in series with the other primary windings, wherein the series coupled primary windings are coupled to the inverter to receive respective portions of the converted AC voltage. The system also includes a plurality of bridges, each bridge coupled to a respective secondary winding configured to receive a respective portion of a transformed AC voltage from the respective secondary windings, and coupled in parallel to the other bridges to provide a combined DC output voltage. | 04-19-2012 |
20130162239 | ELECTRONIC POWER TRANSFORMER - A multi-phase electronic power transformer includes a set of primary windings, wherein each primary winding is configured to couple with an input voltage. The transformer includes a pair of primary switching devices that includes a first primary switching device coupled to a first end of each primary winding and a second primary switching device coupled to a second end of each primary winding distinct from the first end of each primary winding. The transformer includes a set of secondary windings, wherein each secondary winding is configured to inductively couple with a respective primary winding and to output a voltage. The transformer includes a pair of secondary switching devices that includes a first secondary switching device coupled to a first end of each secondary winding and a second secondary switching device coupled to a second end of each secondary winding distinct from the first end of the each secondary winding. | 06-27-2013 |
20130313906 | REMOTE LOAD BYPASS SYSTEM - A load bypass switch enables continuous power to remote loads in the event of 1) failure of one or more remote loads, or 2) faults within the remote loads, within a dc power system. The bypass switch utilizes the passive components of the dc loads or inverters and therefore reduces overall component count. A black start method for the remote dc system uses the same passives present inside the loads/inverters and simultaneously uses some of the features of the bypass switch. A bypass-module-yard uses multiple bypass switches enabling continuous power to the remote loads in the event of failure of one or more power distribution cables (in-feed to the remote loads) located remotely in the dc system. | 11-28-2013 |
20130322142 | MULTILEVEL POWER CONVERTER - An AC-DC power converter is provided. The power converter includes an electrical terminal including a positive node and a negative node. The power converter also includes a first switch coupled across the positive node and the negative node and a second switch coupled in a reverse orientation relative to the first switch and in parallel to the first switch forming a first path and a second path. The power converter further includes a first electrical storage device situated in the first path and a second electrical storage device situated in the second path. | 12-05-2013 |
20130343089 | SCALABLE-VOLTAGE CURRENT-LINK POWER ELECTRONIC SYSTEM FOR MULTI-PHASE AC OR DC LOADS - An electronics power system includes a plurality of substantially identical power electronic modules. Each power electronic module includes a single-phase DC/AC inverter having an output side. Each power electronic module further includes a medium/high-frequency-isolated DC/DC current-to-voltage converter having an input side. The medium/high-frequency-isolated DC/DC current-to-voltage converter drives the single-phase DC/AC inverter. Each DC/DC converter and its corresponding DC/AC inverter are connected back-to-back sharing a common DC-link. The plurality of power electronics modules is stacked together in series at the input side and in parallel or series/parallel at the output side. | 12-26-2013 |
20140092660 | MULTILEVEL CONVERTER SYSTEM - A power converter includes at least one leg with a first string including a plurality of controllable semiconductor switches, a first connecting node, and a second connecting node, wherein the first string is operatively coupled across a first bus and a second bus. The at least one leg also includes a second string operatively coupled to the first string via the first connecting node and the second connecting node, wherein the second string includes a plurality of switching units. The first string includes a first branch and a second branch, wherein the second branch is operatively coupled to the first branch via a third connecting node and the third connecting node is coupled to a ground connection. | 04-03-2014 |
20140092661 | MULTILEVEL CONVERTER SYSTEM - A power converter is presented. The power converter includes at least one leg, the at least one leg includes a first string, where the first string includes a plurality of controllable semiconductor switches, a first connecting node, and a second connecting node, and where the first string is operatively coupled across a first bus and a second bus. Furthermore, the at least one leg includes a second string operatively coupled to the first string via the first connecting node and the second connecting node, where the second string includes a plurality of switching units. A method for power conversion is also presented. | 04-03-2014 |
20140347898 | MODULAR MULTI-LEVEL POWER CONVERSION SYSTEM WITH DC FAULT CURRENT LIMITING CAPABILITY - A power converter module is provided. The power converter module includes a first converter leg and a second converter leg. The first converter leg includes a first switching unit and a second switching unit coupled in series. The second switching unit is disposed in a reverse orientation with respect to an orientation of the first switching unit. The second converter leg includes a third switching unit and a diode coupled in series. The third switching unit is disposed in a reverse orientation with respect to the orientation of the first switching unit. The power converter also includes a first energy storage device operatively coupled between the first converter leg and the second converter leg. The power converter module further includes a second energy storage device operatively coupled between the first converter leg and the second converter leg. | 11-27-2014 |
20150070939 | ELECTRIC POWER CONVERSION SYSTEM AND METHOD OF OPERATING THE SAME - An electric power conversion system is coupled to a high voltage direct current (HVDC) transmission system. The electric power conversion system includes a plurality of power conversion modules. At least one of the power conversion modules includes at least one power converter coupled to at least one DC power terminal. The power conversion module also includes at least one isolation device coupled to the at least one power converter. The at least one power converter and the at least one isolation device at least partially define an isolatable portion of the electric power conversion system. The at least one isolation device is configured to remove the isolatable portion from service. The at least one power converter is configured to decrease electric current transmission through the isolatable portion prior to opening the at least one isolation device. | 03-12-2015 |